步进电机模块，正转，反转调速
仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
单片机源程序如下:
/*---------------------------------------------------------------------
LCD1602.C文件 LCD1602的函数
----------------------------------------------------------------------*/
#include "hardware.h"
#include "lcd1602.h"
void LCD_check_busy(void) //检测LCD状态，看它是不是还在忙呢
{
while(1)
{
LCD_EN=0;
LCD_RS=0;
LCD_RW=1;
LCD_DATA=0xff;
LCD_EN=1;
if(!LCD_BUSY)break;
}
LCD_EN=0;
}
void LCD_cls(void) //LCD清屏
{
LCD_check_busy();
LCD_RS=0;
LCD_RW=0;
LCD_DATA=1;
LCD_EN=1;
LCD_EN=0;
}
void LCD_write_instruction(unsigned char LCD_instruction) //写指令到LCD
{
LCD_check_busy();
LCD_RS=0;
LCD_RW=0;
LCD_DATA=LCD_instruction;
LCD_EN=1;
LCD_EN=0;
}
void LCD_write_data(unsigned char LCD_data) //输出一个字节数据到LCD
{
LCD_check_busy();
LCD_RS=1;
LCD_RW=0;
LCD_DATA=LCD_data;
LCD_EN=1;
LCD_EN=0;
}
void LCD_set_position(unsigned char x) //LCD光标定位到x处
{
LCD_write_instruction(0x80+x);
}
/*
void LCD_go_home(void) //LCD光标归位
{
LCD_write_instruction(LCD_GO_HOME);
}
*/
void LCD_printc(unsigned char lcd_data) //输出一个字符到LCD
{
LCD_write_data(lcd_data);
}
void LCD_prints(unsigned char *lcd_string) //输出一个字符串到LCD
{
unsigned char i=0;
while(lcd_string[ i]!=0x00)
{
LCD_write_data(lcd_string[ i]);
i++;
}
}
void LCD_initial(void) //初始化LCD
{
LCD_write_instruction(LCD_AC_AUTO_INCREMENT|LCD_MOVE_DISENABLE);
LCD_write_instruction(LCD_DISPLAY_ON|LCD_CURSOR_OFF);
LCD_write_instruction(LCD_DISPLAY_DOUBLE_LINE);
LCD_cls();
}
运行错误 求指导:
步进电机模块.zip
(59.61 KB, 下载次数: 11)
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